Shedding mechanism for looms.



Patented 1am-.29, Ism.

H. www. SHEDDING MEGHNISM -FB LUOMS.

(Applieatiun led,0ct.30, 1899.)

A4 Sheets-Shut L (No Modem JMW Patented lan. 29, |90I. H. wyMAN.SHEDDING MECHANISM FORl LOOMS.

(Application med Oct. 30, 1899.) n

4 Sheets-Sheet 2.

(No Nudel.)

Patented Jan. 29, |901.

H. W-AYMAN. SHEDDING MECHANISM FOR LOOMS.

(Application led Oct. 80, 1899.

4 Sheets-Sheet 3.

(N6 Model.)

'ms mams frans co. www-mo, WASHINGTON. n. c.

l No. 666,787.-

. Patented 1an. 29, I90I.D H. WYMAN. SHEDDING MECHANISM FDR LDOMS.

(Application led Oct. 30, 1899.)

v4 sheets-sheet 4.

(No Model.)

mi Nanms PETERS co, Puoro-Lxwov. wAsmNcTou. nA c.

. UNITED STATES PATENT OFFICE.

-HORACE VYMAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE CROMPTON daKNOWLES LOOM WORKS, OF SAME PLACE.

SHEDDING M ECHANISM FOR LOOlVlS.

SPECIFICATION forming part of Letters Patent No. 666,787, dated January29, 1901. Application led October 30,1899. Serial No. 735,288. (Nomodel.)

To all whom/ it may con/cern:

Be it known that I, HORACE WYMAN, of Worcester, county of Vorcester,State of Massachusetts, have invented an Improvement in SheddingMechanism for Looms, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters on thedrawings representing like parts.

The invention herein to be described is intended to be an improvement onthat class of looms designated as dobby, one form of which isrepresented in United States Patent No. 459,474, dated September 15,1891.

The present improvement relates to a new manner of positively actuatingthe harnesslevers by novel means. In the patent referred to theharness-levers were moved positively to put their connectedharness-frames and warps carried thereby into the upper or lower planeof a shed by devices designated as carriages, which besides engaging thenotched jacks in their outward movement to open the shed in their returnmovements acted to turn said harness-levers in a direction to depressthe harness-frames and put the warps carried by them into the lowerplane of the shed. In said loom the lever connections were pivoted uponthe harnesslevers and were provided at their upper and lower ends with anotched jack, one or the other of which, in accordance with the demandof the pattern-surface, was engaged by one of the carriages to turn aharness-lever in the direction to lift the harness-frame connected withit; but herein I have joined operatively with the opposite ends of saidconnections a notched jack, which may be engaged by the shed-formingknife when it is desired to put a harness-frame into the upper plane ofthe shed, and also a depressingjack, which is acted upon by said knifeto put a harness-frame in the lower plane of the shed.

In accordance with my invention I have provided a series rofdouble-ended harnesslevers with suitable inclines or faces locatedthereon at a short distance from the fulcra about which the levers turn,and at opposite sides of said fulcra I have provided a series ofharness-lever-actuating cams or slides,

each having suitable inclines to ,coperate with the inclines of theharness-levers, and I move said cams by or through connections which areentirely separate from the usual harness-levers, each of saidconnections having operatively joined at each of its ends a pair ofjacks. The knives in their reciprocating movement act alternately on thejacks of each pair, each knife in its outward movement acting on onejack of a pair to put the connected harness-frame in one plane of theshed-as,A for instance, the Lipper planeand in its opposite lnovementacting on the other jack of the pair to put the said harness-frame inthe other or lower plane of the shed, each knife in engagement with ajack moving it always in the same direction to place the harness-frameconnected therewith in the same plane of the shed. As herein shown, wheneither of the shed-forming knives move outwardly it will by theengagement of a jack move a harness-frame from the lower plane of theshed into the upper plane thereof, such direction of movement being dueto the fact that the pin or projection carried by the actuator and uponwhich is mounted the connection is located below the rod constitutingthe pivot for the actuator rather than above said pivot, and thereforeit will be understood that should the said pin or projection on whichthe connection is mounted be located above the rod supporting theactuator then when the shed-forming knife moves outwardly in engagementwith a jack it would move the harness-frame connected with said jackfrom the upper plane of the shed into the lower plane thereof. j

The cams under the control of the connections referred to are hereinrepresented as shaped to not only move the levers positively, but alsoto assist in locking them in their extreme positions for one or moresheds.

The connections may be mounted upon intermediate devices, hereinafterdesignated as actuators, the actuators being shown as having pins toconstitute pivots for the connections, said actuators, mounted on asuitable supportng-rod, being constructed to engage the slides havingthe cams for moving the harness-levers.

Figure 1 shows in elevation, viewing it from IOO its rear side, asufficient part of a loom of the class specified to enable my invention,herein represented in one of the best forms now known to me, to beunderstood. Fig. 2 on a larger scale represents two harness-levers andparts cooperating therewith to put said levers in their extremepositions and the patternsurface. Fig. 3 is a partial section to theleft of the dotted line x, Fig. 2. Fig. 4 is a partial section to theleft of the dotted' line w', Fig. 2, said two figures showing the gridsor guides for the depressor-jacks. Fig. 5 is an inner edge view offeneof the harness-levers. Fig. 6 shows one of such levers, an operatingcam,and an actuator. Fig. shows the cam by itself looking at the side of itnext to the lever. Fig. 8 is a detail showing three harness-levers,their attached connections, and actuators looking at the outer edges ofthe harness-levers. Fig. 9 represents one connec: tion with a pair ofnotched jacks at each end, one of said jacks being described as aliftingjack and the other as a depressing-jack. Fig. 10 is a top or planView of the device shown in Fig. 9. Fig. ll is a view below the dottedline :62, Fig. 9. Fig. 12 shows an actuator in side and in edge view,and Fig. 1 3 represents a guide to be described.

The loom-frame A has erected upon its top, as represented, three sets ofroller-sheaves A A2 A3, over which are extended the upper stretches ofcording A5, connected in usual or suitable manner with the upper ends ofharness-levers A6, the upper stretches of said cording being joined inusual manner to the upper bars of the harness-frame A7. The lower barsof said frames are united by under stretches of cording AS, passed aboutsheaves A4, with the opposite or lower ends of said harness-levers, theybeing suitably pivoted on a proper rod or fulcrum A9, held in any usualmanner in the loom-frame.

Herein the connections B, one for each harness-frame, instead of beingpivotally mounted on theharness-levers oran extension therefrom, as inthe patent referred to, are mounted on studs or projections B ofactuators B2, represented as having their h ubs slotted, as at B3, tofit over and be sustained by a rod B4, occupying a positionsubstantially parallel with relation to the rod A9 sustaining theharnesslevers, each of said actuators, as herein shown, having an arm orprojection BX, which is adapted to engage a harness-lever-moving.

cam or cam-slide C', said arm, as herein shown, entering a suitablenotch C (see Fig. 6) in said cam, the cam being depressed Whenever aharness-lever is to be acted upon to effect the lifting of its attachedharness-frame and the cam being lifted whenever a harness-lever is to bemoved to depress its cooperating harness-frame and put it into the lowerplane of the shed. The cam C is sustained and guided by suitable guidesC4 G5, occupying a iixed position with relation to the frame of theloom, said guides acting to insure, as herein represented, the lmovementof the cams in straight lines. As herein'represented, each cam C' hastwo acting faces or inclines c c',

which cooperate with suitable inclines, as aa', 7o

of the harness-levers, the inclines a being represented as located atone side .the rod A9, while the inclines a are located at the oppositeside thereof. These cams C', while they act to turn the harness-leversabout the fulcrum A9, also act when in their extreme positions to lockthe harness-levers in their extreme positions to thereby maintain theWarps in the proper plane of the shed, said cams also acting whileturning the harness-levers 8o about their fulcrum to prevent the leversfrom moving at a faster speed than that determined by the movement ofthe shed-forming knives.

I am the first, as I believe, to turn a doubleended harness-lever aboutits fulcrum in opposite directions by or through a cam actuated by aconnection provided at its opposite ends with apair of jacks adapted tobe moved by a shed-forming knife, I employing two 9o line or directionof movement of the cams,

nor is the invention to be limited to the particular shape of theactuator employed to move the cams, as it will be understood that saiddevices might be variously modified or changed in shape by the exerciseonly of mechanical skill and not invention and yet accomplish thepurpose set forth herein, and herein I intend to claim, broadly, anyintermediate mechanism between a harness-lever and anindependently-supported pivoted connection provided at its ends with apair of jacks adapted to be moved by a pair of shedforming knivesreciprocating in reverse direction, one pick in one direction and theICO next pick in the opposite direction to move 11o the harness-lever toform sheds, is comprehended by and is within the scope of my invention.

Each connection B has operatively joined to it at its upper end anotched lifting-jack b, and at its lower end it has a like notchedlifting-jack h', and also at its upper end each connection has adepressing-jack b2, and at its lower end there is a like depressing-jackb3, and, as herein shown, the depressing-jacks are pivoted directly uponthe ends of the lever B, said depressing-jacks having pivots 19X tosustain the lifting-jacks, although the lifting-jack and thedepressing-jack may have one pivot common to both upon the end of theconnection B, if desired. The lifting and depressing jacks at one end ofthe connection are herein designated as a pair of jacks. Thelifting-jacks have suitable projections b4 b5, which may be engaged atthe proper times, due to the exigencies of the patternsurface E, ofusual construction, by one or the other of the shed-forming knives h6 orb?, said knives being free to slide in suitable slots in the dobby-headF, said knives being connected at their opposite ends (see Fig. l) byrods 117 bs with a suitable lever b, pivoted at blo and actuated by asuitable rod Z712, connected with said lever and with the crank-pint13of a toothed gear 614, which derives its motion of rotation from atoothed pinion Z915, fast on the shaft bX, which may be the usualcrankshaft or any other shaft' properly timed and deriving its motionfrom a moving part of the loom and actuating one of said knives in onedirection at one pick and the other of said knives at the same timemoving in the other direction, the movement of said knives being inreverse directions at the next pick, and so on, said knives being hereindesignated as a pair of reversely-reciprocating shed-forming knives. Thetoothed wheel 1914 is fast on a shaft provided at its opposite end witha beveled gearhl, which in turn engages a beveled gear b1B on a shaftprovided at its opposite end with a worm 519, which engages a wormtoothed gear h2o on the shaft b21, of suitable construction, which movesthe pattern surface or chain E, the latter having usual pins d, whichmay be set in any desired order according to the pattern to be woven.The pins d of the pattern-surface act at suitable intervals uponsuitable levers cZ dx, mounted in pairs upon a suitable rod d2, one ofsaid levers, as d', having a toe cl3 and one, CZX, having a projectiond4, provided with a pocket and seat to sustain thelower end of a rod d5,provided at its upper end with a head which abuts against the notchedlifting-jack, operatively joined with the upper end of the sameconnection with which the lowermost jack b', controlled by the finger,is joined.

The framework has two stops e and e', (see Fig. 2,) against which mayact the shoulders e2 e3, placed between the inner edges of the notchesand the pivotal points of the liftingjacks b and b', and when saidshoulders engage said stops the connection to which said jacks areoperatively secured will occupy the position shown by the connection atthe left in Fig. 2 and the cam c' will occupy its elevated position,causing the harnesslever .acted upon by it to occupy a position to putits connected harness-frame in the lower plane of the shed. The stops ee' are so placed on the framework of the loom as toengage the shoulderse2 e3 of such lifting-jacks as are in their inward position, asrepresented by the jacks l) D, Fig. 2, these jacks being those that arenot drawn outward by the outward movement of either knife, and saidstops serve to positively lock such jacks intheir inward position duringthe formation of a shed,the said jacks being held elevated, with theshoulders c2 63 against the stops e e and above the knives, by the rodsd5 or toe (Z3 or levers d/ (lx.

It will be understood that whenever a jack is actuated by one or theotherof the knives the said jack will, through the connection to whichit is attached, turn an actuator to thereby raise or lower aharness-frame, and during this operation the connection turns about thepivot B of its actuator and the actuator turns about its pivot B4, sothat as the connection turns about its pivot B' the said pivot is beingmoved out of line of the pivots B' of the other actuators, as shown bythe pivot B of the connection B0 in Fig. 2. This compound movement ofthe connection gives to that end of it which rests against one of thestops C4 or C5 a vertically-sliding movement, such vertical movement ofcourse being given to the attached end of the jack, the shoulder of saidjack being in contact with the stop on the frame. Fig. 6 illustratesdiagrammatically the two extreme positions of the connection and theresultant vertically-sliding movement of its ends, the vertical dottedline representing the position of the connection when neither of itspairs of jacks are operated on by a knife and the oblique dotted linesshowing its position when one or the other of its pairs of jacks havebeen moved outward by a knife. The free ends of the jacks are normallysustained by the rods d5 or toes cl3, which are controlled by the leversd dx. Hence this vertical motion of that end of the jack which isattached to the connection will operate to swing the jack in a verticalplane about the point where 'ack rests on the rod d5 or toe cl3 as thesaid j a fulcrum. In order to prevent such swingving or tipping of thejack from disengaging the shoulder e2 e3 from the stop e or e', saidstops are so placed on the framework of the loom as to be substantiallyin line above the rods d5 and toes d3 ot the levers d' and dx, whichcontrol said jacks as to the engagement of their shoulders e2 e3 withthe stops e e, so that said stops, and consequently the shoulders on thejacks when in engagement with the said stops, are approximately at thefulcrum-point of the jacks as they swing or tip, owing to theup-and-down movement of the ends of the connections, as above described.With the shoulders and stops thus positioned it will be evident that anyup-anddown movement which may be given to the ends of the connections asthey are turned by the knives about the pivots B will not change therelative positions of the stops and the shoulders of those jacks whichare in their inward position, as would be the case if the jack weresupported by the rod d5 or toe d3 at a point between its free end andthe shoulder e2 or e3, for were the jacks supported on the rods d5 ortoes d3 beyond thel shoulders the tipping of these jacks, which are intheir inward position, as above described, would tend to release theshoulders e2 or e3 from the stops e and e.

In weaving, certain of the harness-frames have to be brought into theupper frame of the shed in a predetermined order to weave the desiredpattern, and in doing this if the pins on the pattern-surface raise thelevers d and thereby allow the lifting-jack b to be IOO IZO

depressed preparatory to the outward movement of the shed-forming knifeb5 then that jack would be moved with said knife and would pull theupper end of the connection B with it, and at the same time inasmuch asthe lower end of said connection rested against the guide C5 asa-fulcrum the actuator B2, having the pin b constituting acentralfulcrum for said lever,will be moved in a direction to cause thearm B of said connection to be depressed and with it depress the cam C'under its control, so that the surface c thereof acting against thesurface a of the harness-lever will turn said lever into the positionshown by the second lever in Fig. 2, thus lifting the harness-frameunder its control and putting said harness-frame into the upper plane ofthe shed. It will be obvious that the harness lever would be lifted injust the same way if the lifting-jack b were depressed to engage theshedding-knife h6 in its outward movement.

To return each connection B and move the actuator underl its control tomove the cam cooperating with it to turn positively the harness-leverand put the harness-frame connected with it in the lower plane of theshed, I have provided depressingjacks b2 and b3, one for eachlifting-jack, a lifting and a' depressing jack constituting a pairsliding in the same opening, as forf', of the usual grid, thedepressing-jack having, as represented, a shoulder 2 and two projections3 and 4, the projection 4 overlapping the upper side of thelifting-jack, while the projection 3 eX- tends across the lifting-jackat its under side, so that the upward limit of movement of each of saidjacks is controlled by the other.

The shedding-knives be and U' work in opposition-z'. e., when one ismoved outwardly the other is moved inwardly. Let it be supposed that theknife b'f is moving outwardly into the position,Fig. 2, it putting theharness-frames connected with the jacks caught upon it into the upperplane of the shed, and that at the same time the knife bs is movinginwardly, it being in contact with the shoulders 2 of thedepressing-jacks occupying a position in the path of its movement, andcarrying said jacks with it to the left, putting the upper ends of theconnections B, or the small Wearing projections h thereof, (see Figs. 9,l0, and 11,and in this instance illustrated as forming part of theconnections,) in contact with the outer side of the rear guidepCl, theengagement of said knife b with said depressingjacks putting theharness-frames connected with them in the opposite plane of the shed, asherein shown the lower plane, the knife during this movement occupying aposition out of engagement with the jacks b, and while so out ofengagement-said jacks are redistributed, and such jacks as are not putin position to be taken out by the knife be when it is again movedoutwardly to the right are left with their shoulders e2 in contact withI the stops e, the jacks which are to be engaged and moved outwardlydropping and coming into position to enable their hooks to be engaged bythe knife b, the harness-frames connected with the lifting-jacksactuated at such time by the knife bs being put into the upper plane ofthe shed, so when a hooked jack b is being moved outwardly it will beunderstood that the hooked jack b attached to the opposite ends of theconnection will be held in its fixed position by the shoulder esthereof, it at such time meeting the stop e', and vice versa.

I have hereinbefore referred to the fact that each knife 236 57 in itsoutward movement inengagement with a jack b b puts the harness-leveroperatively connected with said jacks in the upper plane of the shed,but this is due solely to the fact that the pin or project-ion B on theactuator, said pin supporting the connection B, is located below thefulcrum B4 for the actuator, and it will be understood that were thispin B located above the fulcrum B4 in such event the outward movement ofthe knives would be effective to put the harness-frames connected withthe jacks and moved outwardly by the knives in the lower plane of theshed.

The rod a9 may have applied to it any desired number of harness-levers,according to the number of harness-frames it may be desired to employ toweave the particular goods under consideration, and to confinetheseharness-levers, whatever may be their number, properly upon saidrod a9 that their hubs g may contact properly, I have made a guideplateg', the shape of which is best shown in Fig. 13, the plate being appliedto the rods a9 and b4.

While I have shown the cams for moving the harness-levers asindependently mounted on the loom and interposed between the actuatorsand the harness-levers, yet I do not intend in all instances to limit myinvention to exactly such construction, as it comprehends, broadly, aseries of cams deriving their movement from said actuators and in suchmovement actuating the harness-levers.

The pairs of jacks at both ends of the connection work just alike, andit will be under-l stood that when a knife-say the lower oneis returningto place, it may be, a harnessframe in position to put its warp in thelower plane of the shed said harness-frame will not be so moved,provided the jack attached to the opposite end of the connection isengaged and drawn outwardly by the opposite, or, say, the upper, knifeas the lower knife is moved inwardly.

Having described my invention, what I.

claim as new, and desire to secure by Letters Patent, is-

1. In a loom, double-ended harness-levers having cams at opposite sidestheir pivotal points and adapted to be connected with harness-frames, aseries of connections supported. independently of said harness -levers,a pair of shed-forming jacks carried by each end IOO IIO

of said connections, means to engage and move said jacks alternately atdesired times, and devices actuated by the movement of said connectionsto turn said harness-levers about their fulcra.

2. In a loom, a pivoted harness-lever, a pivoted connection operatively-joined with the harness-lever, a pair of jacks pivoted to each end ofeach connection, and shed-forming knives, said knives engaging one jackof a pair to move the harness-lever in one direction, and the other jackof said pair to move the harness-lever in the other direction.

3. In a loom, a pivoted harness-lever, a pivoted connection operativelyjoined to said harness-lever, a pair ofjacks carried by cach end of theconnection and shed forming knives, each of said knives adapted toengage one jack of a pair in its outward movement and the other jack ofthe said pairin its backward movement.

4. In a loom, a series of double-ended harness-levers adapted to beconnected at their opposite ends by suitable cording withharness-frames, each of said levers having at opposite sides its centerof motion an incline, a series of connections mounted independently ofsaid harness-levers,one connection for each lever, each of saidconnections having joined with it at its opposite end a pair of jacks; apair of shed-forming knives, each knife cooperating with one pair ofsaid jacks, means to actuate said knives each in one direction for onepick, and in the opposite direction for the next pick, andharness-lever-moving cams adapted to be moved in opposite directionsthrough the movements of said connections actuated by the knivesengaging the jacks thereof.

5. In a loom, harness-levers adapted to be connected withharness-frames, a series of pivoted actuators, a series of con nectionspivoted each on its own actuator, a lifting-jack, and a depressing-jackpivotally mounted on each end of each of said connections, said liftingand depressing jacks being independent from each other,oppositely-moving knives to move said connections and actuatorspositively in both directions, and independent intermediate devicesmoved by said actuators to act upon and turn said harness-levers.

6. In a loom, a series of harness-levers adapted to be connected eachwith one of a series of harness-frames, a series of cams, one for eachof said harness-levers, a series of connections, each provided at itsupper and lower ends with a lifting-jack and a depressingjack, apattern-surface, suitable shedforming knives to engage said toothedjacks according to the demands of the pattern-surface to move themoutwardly, and a series of devices controlled as to their movements bysaid connections and adapted to reciprocate the cams for actuating theharness-levers, whereby whenever a knife engages a lifting-jack theharness-frame under the control of said jack will be lifted, said knifeon its return stroke through the depressing-jack effecting thedepression of the harness-frame under its control into the lower planeof the shed.

7. In a shedding mechanism for looms, a harness-lever, a pivotedconnection for operating said harness-lever, a jack at each end of saidconnection, knives to move the jacks, said jacks each having a shoulder,fixed stops on the loom-frame to engage the shoulders of those jacksthat are not moved outward by the knives, and means to prevent thedisengagement of the shoulders and stops during the tipping or swingingof the jack due to the turning` of the connection about its pivot.

8. In a loom, a harness-lever, actuating means therefor, including apivoted connection having at each end a jack, means to move the jacks tothereby form sheds, each jack having a shoulder and stops on theloomframe adapted to engage the shoulders when the jacks are in theirinward position and supporting means for the free ends of the jackslocated substantially in line with said stops but on the opposite sideof the jacks therefrom whereby, when the connection is turned theshoulder of the jack will not be disengaged from the stop.

9. In a loom, a harness-lever, a connection adapted to move saidharness-lever to form sheds, notched jacks attached to the opposite endsof said connection, knives to engage and move the jacks,pattern-controlled indicating means for distributing the jacks, saidjacks each havinga shoulder and stops on the loomframe to coperate withthe said shoulders, said stops located substantially in line with andabove the indicating means, and on the opposite side of the jacks fromsaid indicating means.

l0. In a loom, alternately-moving shedforming knives, a pivotedconnection, two shed-forming jacks pivotally sustained, one at or nearthe opposite ends of said connection, each jack having a notch adaptedto be engaged by a knife at one edge and having at its opposite edge ashoulder, two shed-closing jacks, one operatively joined with each endof said connection, a series of stops e, e' crossing the upper sides -ofthe said jacks, andmeans to operate said shed-forming jacks to put theirshoulders in contact with said stops preparatory to the change ofpatternsurface, t0 redistribute said jacks to be engaged by theshed-forming knives.

1l.- In a loom, alternately moving shedforming knives, a pivotedconnection, two shed-forming jacks pivotally sustained, one

at or near the opposite ends of said connection, each jack having anotch adapted to be engaged by a knife at one edge and having at itsopposite edge a shoulder, two shed-closing jacks, one operatively joinedwith each end of said connection, a series of stops e, e crossing theupper sides of said jacks and adapted to be engaged by the shoulders ofsuch jacks as are in their inward position and IOC IIO

means to prevent the shoulders from being disengaged from the stops whenthe connection is moved to form a shed.

l2. In a loom, alternately moving shedforming knives, a pivotedconnection, a shedforming jack pivotally mounted at each end of saidconnection, each jack having on one edge a shoulder, a shed-closing jackalso pivoted to each end of the connection, patterncontrolled indicatingmeans controlling the shed-forming jacks, stops as e, e on the loomframeadapted to be engaged by the shoulders of such jacks as are in theirinward position, said stops being located substantially vertically abovethe indicating means whereby the shoulders of the jacks are maintainedin engagement with the stops during the turning of a connection in theformation of a shed.

13. In a loom, a double-ended harness-lever, a harness-frame connectedtherewith, a connection operatively joined with said lever, two jacksjointed to each end of said con nection, and two oppositelymovingshedforming knives, each knife in one direction of its movement engagingone of said jacks to form a shed, and in its opposite direction engagingthe other of said jacks, to put the connection in a position where thejacks attached to it may be redistributed for the formation of anothershed, said shed-forming knife when cooperating with the jack to put theconnection in position where the jacks may be redistributed positivelylocking said connection in position until the redistribution of thejacks takes place.

14. In a loom, a harness-lever having a plurality of inclined faces, areciprocating cam having a plurality of inclines cooperating with theinclined faces of the harness-lever, two knives, means to move themoppositely, two pairs of lifting and depressing jacks operatively joinedwith said cam, said jacks adapted to be actuated bythe knives, said cam,as it is moved, being kept in close contact with the harness-lever andmade to positively turn said lever about its fulcrum in the properdirection.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HORACE WYMAN.

Witnesses:

GEO. W. GREGORY, W. W. DIXON.

